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cilt.ie
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"Section 5 Rail Transportation"(PDF). Congestion Management Process (CMP). North Central Texas Council of Governments. p. V-14. Archived from the original(PDF) on 13 May 2012. Retrieved 31 August 2013.
Lind, William (11 May 2011). "Run a Train That's Fast Enough". Engineering News-Record. Archived from the original on 22 January 2013. Retrieved 10 October 2012.
"High-Speed Rail Strategic Plan"(PDF). Federal Railroad Administration. April 2009. p. 10. Archived from the original on 7 January 2013. Retrieved 16 April 2009.
"State Aviation System Plan"(PDF). Minnesota Department of Transportation. July 2013. p. 200. Archived(PDF) from the original on 3 February 2014. Retrieved 22 January 2014.
"Types of passenger rail"(PDF). Texas-Oklahoma Passenger Rail Study Newsletter. 2 (1): 2. Winter 2014. Archived(PDF) from the original on 3 February 2014. Retrieved 22 January 2014.
2016 RTP/SCS Passenger Rail Appendix(PDF). Southern California Association of Governments. December 2015. Archived(PDF) from the original on 18 January 2017. Retrieved 4 November 2016.
Caltrain Modernization Program(PDF). Transbay Joint Powers Authority Citizen Advisory Group. 14 January 2014. Archived(PDF) from the original on 20 December 2016. Retrieved 16 December 2016.
"T21 Midterm Review"(PDF). Chartered Institute of Logistics and Transport (Ireland). November 2010. Archived from the original(PDF) on 10 February 2015. Retrieved 29 July 2013.
"Corridor Forum Meeting #1 – Summary"(PDF). Oregon Passenger Rail – Eugene Portland. Oregon Passenger Rail. Archived(PDF) from the original on 29 May 2014. Retrieved 3 November 2012.
"Tier 1 Service Level EIS: Chapter 2 – Alternatives"(PDF). Chicago to Council Bluffs-Omaha Regional Passenger Rail System Planning Study. Iowa Department of Transportation. Archived(PDF) from the original on 3 September 2013. Retrieved 4 November 2012.
Preliminary Service Options Performance Report(PDF). Northern New England Intercity Rail Initiative (Report). massDOT. April 2014. p. 11. Archived(PDF) from the original on 21 January 2015. Retrieved 21 January 2015.
"Online Briefing Winter 2011 ‐ 2012"(PDF). High Speed Rail Empire Corridor Project. New York Department of Transportation. Archived from the original(PDF) on 4 March 2016. Retrieved 8 November 2012.
"Show Me Improved Rail Service"(PDF). Missouri Department of Transportation. April 2011. Archived(PDF) from the original on 9 November 2012. Retrieved 13 February 2013.